Public domain
A train being pushed over the hump at the Proviso yard, C & NW RR., Chicago, Ill.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineA train being pushed over the hump at the Proviso yard, C & NW RR., Chicago, Ill.. 1939-01-01. Delano, Jack. FSA/OWI Color Photographs, Library of Congress. Public domain.
